Why you have to use the WordLand-generated feed for linkblogs. 

WordPress uses the link element in RSS to point to the same address as the guid. 

The WordLand feed points to the link you provided in the linkblog. 

So we'll have to detect duplicates here in another way so the checkboxes aren't duplicated. 

I knew this was going to be a bit tricky, but that's what we like, complexity in the software to make the user interface simple. Bury the details.